The Food and Drug Administrationbanned the sale of soaps containing certain antibacterial chemicals on Friday, saying industry had failed to prove they were safe to use over the long term or more effective than using ordinary soap and water.

In all the F.D.A. took action against 19 different chemicals and has given industry a year to take them out of their products. About 40 percent of soaps — including liquid hand soap and bar soap – contain the chemicals. Triclosan, mostly used in liquid soap, and triclocarban, in bar soaps, are by far the most common.

The rule applies only to consumer hand washes and soaps. Other products may still contain the chemicals. At least one toothpaste, Colgate Total, still does, but the F.D.A. says its maker proved that the benefits of using it — reducing plaque and gum disease — outweigh the risks.

The agency is also studying the safety and efficacy of hand sanitizers and wipes, and has asked companies for data on three active ingredients — alcohol (ethanol or ethyl alcohol), isopropyl alcohol and benzalkonium chloride — before issuing a final rule on them